Theben SELEKTA 170 top2, Manual

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7.3. ASTRO menu: Offset
The offset is used to adjust the sunrise and sunset times. The offset (correction value) can be used to
shift the calculated astro times by +/- 2 hours. This means that the astro switch-on and switch-off times
can be adapted to local conditions (e.g. mountains, high buildings) or to personal requirements.
Example:
The sunrise time should be 15 minutes earlier and the sunset time 30 minutes later .
Press the MENU button to open the main menu from auto mode.
Press OK to confirm the ASTRO menu.
Press button ► twice until OFFSET appears on the display and press OK to confirm.
Press the OK button.
Use the buttons ◄ and ► to enter the minutes for the astro time correction
(15 minutes earlier) , then press the OK button.
Press the OK button.
Use the buttons ◄ and ► to enter the minutes for the astro time correction
(30 minutes later) , then press the OK button.
Press OK to confirm and the system returns to auto mode.